Results 111 to 120 of about 508,588 (281)

Successive Azide and DNA Functionalization for Reversible and Controlled Association of Single‐Wall Carbon Nanotubes

Chemistry – A European Journal, EarlyView.
A newly synthesized bifunctional azide—diazonium linker allows robust one‐step introduction of azido groups to single‐wall carbon nanotubes. Versatility of the azido groups as reactive handles is demonstrated by further derivatization with 6‐carboxyfluorescein and oligonucleotides.
Razieh Moosavi, Tharun K. Kotammagari, Pia Damlin, Mikko Salomäki, Mika Lastusaari, Han Li, Tuomas Lönnberg   +6 more
wiley   +1 more source

Release of multicomponent pheromones from porous fibres

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Surface engineering empowers a polymer exclusion net to serve dual functions: physical exclusion and pheromonal release, allowing for pest control in agricultural crops. In previous work, a net woven from porous fibres releasing simple, single‐component alarm pheromones showed promising results in field tests.
Darius Klassen, William Simon, Olivier Ngoy, Mikaël Larose, Catherine Pouchet, Gérald Chouinard, Marie‐Josée Dumont, Jason R. Tavares   +7 more
wiley   +1 more source

Desenvolvimento e validação de um método analítico por espectrofotometria UV para quantificação de carvedilol Development and validation of a UV spectrophotometric method to quantify carvedilol

Química Nova, 2013
This paper reports the development and validation of a new analytical method using UV spectrophotometry to quantify carvedilol (CRV) in hydrophilic matrices and raw material.
Paola Aline Amarante Borba, Manoela Klüppel Riekes, Rafael Nicolay Pereira, Hellen Karine Stulzer, Debora Dalla Vecchia   +4 more
doaj  

ultraviolet-visible spectrophotometry (UV-VIS) (methyl (2E)-2-(1,3-dithian-2-yl)-2-[(4-fluorophenyl)hydrazinylidene]acetate)

, 2014
dataset for ultraviolet-visible spectrophotometry (UV-VIS) UV/VIS (CHCl3): lambda max (log epsilon) = 231 (3.9), 302 (3.7), 352 (4.1 ...
Stanek, Bettina
core   +1 more source

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source

Enhanced Nonlinear Optical Absorption Properties and Carrier Dynamics of Violet Phosphorene by Oxidation for Ultrafast Photonic Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study investigates the effects of oxidation treatment on the nonlinear optical absorption properties and carrier dynamics of two‐dimensional violet phosphorene (VP), elucidating the underlying physical mechanisms. Furthermore, ultrashort laser pulses are achieved utilizing the enhanced saturation absorption and shortened carrier relaxation ...
Bo Li, Han Pan, Qingling Tang, Zhongben Pan, Hongwei Chu, Ying Li, Dechun Li   +6 more
wiley   +1 more source

INTEGRATING UV-VIS SPECTROPHOTOMETRY INTO FOOD QUALITY MANAGEMENT SYSTEM [PDF]

: UV-Vis spectrophotometry has become a common and very practical tool in food quality control because it is quick, simple to use, and sensitive enough for everyday analyses.
Tomska, Kristina, Stojkovski, Viktorija
core  

Tuning Colloidal Stability and Photothermal Conversion Efficiency of Graphite Nanofluids via Anionic‐Nonionic Surfactant Engineering

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Graphite nanofluids were stabilized using a mixed SDS/Tween 80 surfactant system. The optimized formulation exhibited enhanced colloidal stability, red‐shifted UV–Vis absorption, and improved photothermal conversion under solar irradiation. Achieving stable dispersion of graphite flakes (GFs) in aqueous media remains a critical challenge in developing ...
Ahmad Chehade, Shoaib Anwer, Md Islam, Eiyad Abu‐Nada   +3 more
wiley   +1 more source

DEVELOPMENT OF THE TECHNIQUE FOR IDENTIFYING Z-PREPARATIONS IN BIOLOGICAL OBJECTS BY THE METHOD OF UV-SPECTROPHOTOMETRY

Разработка и регистрация лекарственных средств, 2019
In the given article, the technique is described and the experimental data for identifying Zaleplon, Zolpidem and Zopiclone (Z-preparations) by method of UV - spectrophotometry isolated from liver tissue are determined.
G. P. Chepurnaya, V. A. Kartashov, L. V. Chernova   +2 more
doaj  

Method Development and Stress Degradation Profile of Umifenovir by UV Spectrophotometry: Degradation Profile of Umifenovir by UV Spectrophotometry

A simple, selective, and economical UV spectrophotometric method has been developed using ethanol as solvent (50%) to determine the umifenovir content in bulk and pharmaceutical dosage formulations.
Priya, Gudimella Ramya, Horan, Abdulrahaman, Nalanda, R. B.   +2 more
core   +1 more source